Alert archive / North Carolina / Flash Flood Warnings in 2009
Flash Flood Warning 40, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 20, 2009, 12:40 AM EDT for Henderson County, Polk County, North Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2009, 12:40 AM EDT (04:40 UTC)
- Expired
- Sep 20, 2009, 3:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Henderson County, NC, Polk County, NC
The radar
The Greer radar (KGSP), 48 km from the middle of the area, began a volume at 04:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.7 hours before the alert went out and 294 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1577 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Sep 19, 10:04 PM EDT, 2 hours 36 minutes earlier.
Area forecast discussion, Sep 19, 10:04 PM EDT, 2 hours 36 minutes before
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</html>Hazardous weather outlook, Sep 19, 9:57 PM EDT, 2 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 957 PM EDT SAT SEP 19 2009 GAZ010-017-018-026-028-029-NCZ033-048>053-058-059-062>065-501>510- SCZ001>007-010-210200- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-MADISON-YANCEY- MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON- SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS- GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS- EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-GREATER RUTHERFORD- POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS- GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS- GREATER GREENVILLE-SPARTANBURG-ANDERSON- 957 PM EDT SAT SEP 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TONIGHT. THE POTENTIAL FOR NUMEROUS TO WIDESPREAD SHOWERS WILL REMAIN INTO THE OVERNIGHT HOURS...WITH LOCALLY HEAVY RAIN AN ONGOING THREAT... ESPECIALLY ACROSS FAR NORTHEAST GEORGIA...THE NORTHWEST UPSTATE AND THE SOUTHERN NORTH CAROLINA MOUNTAINS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. NCZ035>037-056-057-068>072-082-SCZ008-009-011>014-019-210200- ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON- MECKLENBURG-CABARRUS-UNION NC-CHEROKEE-YORK-ABBEVILLE-LAURENS- UNION SC-CHESTER-GREENWOOD- 957 PM EDT SAT SEP 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE.
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 12:05 AM EDT | Areal Flood Advisory | GSP | Henderson, Polk | 115 min |
| Sep 20, 2:14 AM EDT | Areal Flood Advisory | GSP | Transylvania | 106 min |
| Sep 20, 3:30 AM EDT | Flash Flood Warning | GSP | Henderson, Polk, Rutherford | 3 hr |
| Sep 20, 3:41 AM EDT | Areal Flood Advisory | GSP | Jackson | 109 min |
| Sep 20, 4:30 AM EDT | Flash Flood Warning | GSP | Henderson, Jackson, Macon, Transylvania | 4 hr |
| Sep 20, 6:19 AM EDT | Areal Flood Warning | GSP | Henderson, Polk, Rutherford | 4 hr |
| Sep 20, 7:28 AM EDT | River Flood Warning | GSP | Henderson, Transylvania | 4 days |
| Sep 20, 8:14 AM EDT | Areal Flood Warning | GSP | Henderson, Jackson, Macon, Transylvania | 4 hr |
| Sep 20, 11:59 AM EDT | Areal Flood Warning | GSP | Henderson, Jackson, Macon, Polk, Transylvania | 6 hr |
| Sep 20, 5:32 PM EDT | Areal Flood Warning | GSP | Jackson, Macon | 3 hr |
| Sep 20, 6:19 PM EDT | Flood Watch | GSP | Avery, Buncombe, Graham, Haywood, Henderson, Jackson and 9 more | 36 hr |
| Sep 20, 6:07 AM EDT | Flash Flood Warning | GSP | Oconee | 3 hr |
| Sep 20, 9:34 AM EDT | Areal Flood Advisory | GSP | Habersham | 56 min |
| Sep 20, 10:28 AM EDT | Areal Flood Advisory | GSP | Stephens | 62 min |
| Sep 20, 10:39 AM EDT | Flash Flood Warning | GSP | Stephens | 3 hr |
| Sep 20, 2:31 PM EDT | Areal Flood Warning | GSP | Stephens | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 2009Every flash flood warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.